Coincidence detection of spatially correlated photon pairs with a monolithic time-resolving detector array

Unternährer, Manuel; Bessire, Bänz; Gasparini, Leonardo; Stoppa, David; Stefanov, André (2016). Coincidence detection of spatially correlated photon pairs with a monolithic time-resolving detector array. Optics express, 24(25), pp. 28829-28841. Optical Society of America 10.1364/OE.24.028829

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We demonstrate coincidence measurements of spatially entangled photons by means of a multi-pixel based detection array. The sensor, originally developed for positron emission tomography applications, is a fully digital 8×16 silicon photomultiplier array allowing not only photon counting but also per-pixel time stamping of the arrived photons with an effective resolution of 265 ps. Together with a frame rate of 500 kfps, this property exceeds the capabilities of conventional charge-coupled device cameras which have become of growing interest for the detection of transversely correlated photon pairs. The sensor is used to measure a second-order correlation function for various non-collinear configurations of entangled photons generated by spontaneous parametric down-conversion. The experimental results are compared to theory.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Applied Physics
08 Faculty of Science > Institute of Applied Physics > Lasers

UniBE Contributor:

Unternährer, Manuel; Bessire, Bänz and Stefanov, André

Subjects:

600 Technology > 620 Engineering
500 Science
500 Science > 530 Physics

ISSN:

1094-4087

Publisher:

Optical Society of America

Language:

English

Submitter:

Simone Corry

Date Deposited:

12 Jul 2017 14:29

Last Modified:

12 Jul 2017 14:29

Publisher DOI:

10.1364/OE.24.028829

BORIS DOI:

10.7892/boris.96978

URI:

https://boris.unibe.ch/id/eprint/96978

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